<div class="filter">

  <form id='filter_form' name='filter_form' runat='server' method='post'>

      Раздел: <input type='text' id='parent_path' name='parent_path' runat='server' size='40' given_value='{$#parent_path}'/>
      <input type='submit' name='submitted' value="Фильтровать"  class='button'>

  </form>

</div>